Special routes of U.S. Route 31

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Special routes of U.S. Route 31
Highway system

Several special routes of U.S. Route 31 exist. In order from south to north they are as follows.


Pulaski–Nashville alternate route

U.S. Route 31A

LocationPulaskiNashville, Tennessee
Length76.94 mi (123.82 km)

U.S. Route 31A (US 31A) is an alternate route of US 31 that exists between Pulaski and Nashville. It is located entirely in Middle Tennessee and except for the Lewisburg bypass, where it is concurrent with Tennessee State Route 106 (SR 106), it is entirely concurrent with unsigned SR 11.

Lewisburg business route

Business plate.svg

U.S. Route 31A Business

LocationLewisburg, Tennessee
Length2.7 mi (4.3 km)

U.S. Route 31A Business (US 31A Business or US 31A Bus) is a Business route of U.S. Route 31A in Lewisburg, Tennessee, following US 31A’s original alignment through downtown. It is concurrent with unsigned State Route 11 (SR 11) for its entire length.

Franklin truck route

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U.S. Route 31 Truck

LocationFranklin, Tennessee

U.S. Route 31 Truck (US 31 Truck) exists as truck route around the city of Franklin, Tennessee that is entirely concurrent with Tennessee State Route 397 (SR 397; Mack C Hatcher Parkway). At both of its termini, there are signs that show a US 31 Business through downtown Franklin, even though this is the mainline US 31 and this was actually done to draw traffic away from downtown Franklin.

Hendersonville bypass route

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U.S. Route 31E Bypass

LocationHendersonville, Tennessee

An unsigned portion consisting primarily of Tennessee State Route 386 is known as the U.S. Route 31E Bypass.


US 31A

U.S. Route 31A


Former US 31A began at an interchange with US 31 where it traveled on Indianapolis Road and 11th Street. It followed State Road 46 on Brown Street (northbound) and Lindsay Street (southbound). South of Columbus, US 31A went through Jonesville, then passed through an interchange with Interstate 65, and terminated at US 50 in Seymour, Indiana. US 31A was deleted in Indiana in the 1980s, and State Road 11 was extended northward.

Peru business route

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U.S. Route 31 Business

Length5.2 mi[1] (8.4 km)

Business US 31 in Miami County is a business spur serving the city of Peru. It begins at US 31 south of Peru, and when it reaches downtown Peru, it turns east onto Bus. US 24 (Main Street), then it turns north onto Broadway. It ends at US 24 (Hoosier Heartland Highway).

Major intersections
The entire route is in Miami County.

Pipe Creek Township0.000.00 US 31Southern terminus; to be converted into interchange[2]
Wabash River2.03.2Kelly Avenue Bridge
Peru2.23.5Main Street west (US 24 Bus. west)Southern end of Bus. US 24 concurrency

US 24 Bus. east (Main Street east) / SR 19
Northern end of Bus. US 24 concurrency
5.28.4Hoosier Heartland Highway (US 24)Northern terminus; road continues as Mexico Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Plymouth alternate route

Alternate plate.svg

U.S. Route 31 Alternate


Alternate US 31 in Plymouth traveled along the Michigan Road, former US 31. It began at US 31 north of Plymouth, and terminated at US 31 south of Plymouth. It first appears on the 1964 Indiana State Highway Commission map (the previous edition shows a red line denoting a U.S. route but no marker) and last appears on the 1967–68 edition.

South Bend business route

Business plate.svg

U.S. Route 31 Business

LocationSouth Bend
Length11.9 mi[4] (19.2 km)

Business US 31 in South Bend follows the former US 31 north from the US 20/US 31/St. Joseph Valley Parkway interchange on the south side of the city, joining SR 933 south of downtown, then turns west along Cleveland Road just north of the Indiana Toll Road (Interstate 80/90) to return to US 31. The route had been planned to continue into Michigan along the former US 31 route which at the time carried US 33, but the Michigan Department of Transportation did not approve of the routing.[5][6]

Major intersections
The entire route is in St. Joseph County.

South Bend0.000.00
US 31 south – Plymouth, Indianapolis
Continuation beyond southern terminus
US 20 east – Mishawaka, Elkhart
Exit numbers follow US 31; no northbound exit

US 31 north / US 20 west – Niles MI, Michigan City
Northbound entrance (via US 31) and southbound exit
SR 933 south / SR 23 (Sample Street)
Southern end of SR 933 concurrency
Roseland6.210.0 I-80 / I-90 (Indiana Toll Road)ITR exit 77
7.111.4SR 933 northNorthern end of SR 933 concurrency
South Bend11.919.2 US 31 – Benton Harbor, Indiana Toll Road, PlymouthInterchange; northern terminus; road continues west as Brick Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


There are five current, and three former, business routes for US 31 in Michigan. In addition, there was an alternate route in the state.


  1. ^ a b Google (April 30, 2020). "Overview of Bus. US 31 (Peru, Indiana)" (Map). Google Maps. Google. Retrieved April 30, 2020.
  2. ^ Gerber, Carson (September 7, 2018). "Two new interchanges coming to U.S. 31 in Miami Co". Kokomo Tribune. Retrieved April 30, 2020.
  3. ^ Special Committee on U.S. Route Numbering (June 22, 1980). "Route Numbering Committee Agenda Showing Action Taken by the Executive Committee" (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 4. Retrieved October 15, 2018 – via Wikisource.
  4. ^ a b Google (May 1, 2020). "Overview of Bus. US 31 (South Bend, Indiana)" (Map). Google Maps. Google. Retrieved May 1, 2020.
  5. ^ Mumford, Louis (March 27, 1980). "Simple Solution Bogs Down in Bureaucratic Quicksand". South Bend Tribune. p. 29. Retrieved May 1, 2020 – via Newspapers.com.
  6. ^ Kovas, Marchmont (August 19, 1981). "New Signs Erected Along Michigan Show US 31 'Officially' in City Again". South Bend Tribune. pp. 1, 10. Retrieved May 1, 2020 – via Newspapers.com.